Icom IC-M90 Instruction Manual

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94BASIC OPERATION4■ Receiving and transmittingCAUTION:Transmitting without an antenna may damage the trans-ceiver.q Rotate [VOL] clockwise to turn power ON.w Set the volume and squelch level.➥ Push [SQL• MONI], and push [Z] to open the squelch.➥ Push [SQL• MONI ] to stop the squelch indicator blink-ing, then rotate [VOL] to set the volume level.➥ Push [SQL•MONI], and push [Y]/[Z] to set the squelchlevel.e Push [Y]/[Z] to select the desired channel.- When receiving a signal, the transmit/receive indicator lightsgreen while audio is emitted from the speaker.- Further adjustment of [VOL] may be necessary at this point.r Push [Hi/Lo• ] to select the output power if necessary.- “LOW” appears when low power is selected; “MID” appearswhen middle power is selected; no indication when high poweris selected.- Choose low power to conserve battery power, choose highpower for longer distance communications.- Some channels are for low power only.t Push and hold [PTT] to transmit, then speak into themicrophone.- The transmit/receive indicator lights red while transmitting.- Channel 70 cannot be used for transmission.y Release [PTT] to receive.IMPORTANT: To maximize the readability of your transmit-ted signal, pause a few sec. after pushing [PTT], hold themicrophone 5 to 10 cm (2 to 4 inches) from your mouthand speak into the microphone at a normal voice level.NOTE: The transceiver has a power save function toconserve the battery power. The power save function acti-vates automatically when no signal is received for 5 sec.To prevent accidental prolonged transmission, etc., theIC-M90 has a time-out timer function. This timer cuts atransmission OFF after 5 min. of continuous transmission.MIC/SP q Power ONw Set volumeSpeakert Push to transmity Release to receivew Set the squelch levele Set channelw Set the squelch levelMicrophoner Set output power